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. 2010 Sep 7;133(10):3123–3140. doi: 10.1093/brain/awq229

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© The Author(s) 2010. Published by Oxford University Press on behalf of Brain.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/2.5), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Brain regions showing reduced (top: high < low) and increased (bottom: high > low) functional MRI signal in concordant-high versus concordant-low twins. (A) ‘Planning versus baseline’ contrast; (B) ‘task load’ contrast.